Improved Extra Skill Unlock

Improved Extra Skill Unlock is a rewards-based auto-ability that reduces the number of casts and battles required to unlock an extra skill. Although the auto-ability must be placed in the main deck, it affects both main and sub decks.

Bonuses from Mobius VIP mode, Mobius Day, Yggdrasil: Materials, and regions and spirits on certain events can exceed the deck limit of +6.

Cards

 * Chocobo's Mystery Dungeon EVERY BUDDY!★5+ grants +4
 * Chocobo Saint★3 grants +1
 * Chocobo Saint★4 grants +2
 * Chocobo Saint★5 grants +3
 * Chocobo Squad★5 grants +4
 * The Yellow Ribbon★3 grants +1
 * The Yellow Ribbon★4 grants +2
 * The Yellow Ribbon★5 grants +3
 * Yuj & Maqui: FFXIII★4+ grants +2

Weapons

 * Faerie Staff +3
 * Valiantil +3
 * Stargrasp +3
 * Wonder Feather +3
 * Lumineuse +3
 * Sarasvati +3
 * Revolver +5

Jobs

 * Moogle Suit (Job) +3

Other sources

 * Mobius VIP mode grants +2
 * Mobius Day grants approximately +3 or +4

Regions

 * Yggdrasil: Materials grants &times;6 multiplier on regular days, and &times;12 on Mobius Day.

Spirits
The following spirit companions granted bonus Improved Extra Skill Unlock during specific events.


 * Christmas campaign 2017
 * Period: From 00:00, 17 December 2017 (UTC-8) to 23:59, 25 December 2017 (UTC-8)


 * Santa Echo
 * Santa Tonberry
 * Party Bomb
 * Caroling Echo
 * Krampus Moogle?
 * Feasting Chocobo
 * Christmas Tree


 * Valentine's Day campaign 2018
 * Period: From 00:00, 7 February 2018 (UTC-8) to 23:59, 20 February 2018 (UTC-8)


 * Choco-Echo
 * Aerith Echo
 * China Echo
 * Winter Echo
 * Snowmog
 * Ski Chick


 * Halloween campaign 2018
 * Period: From 01:00, 23 October 2018 (UTC-7) to 00:59, 1 November 2018 (UTC-7)


 * Count Echo
 * Another Echo
 * Halloween Echo
 * Reaper Tonberry
 * Jack O 'Tender
 * Tricksy Ultros
 * Dapper Typhon
 * Floating Pumpkin


 * Christmas campaign 2018
 * Period: From 00:00, 22 December 2018 (UTC-8) to 23:59, 31 December 2018 (UTC-8)


 * Santa Echo
 * Santa Tonberry
 * Party Bomb
 * Christmas Tree
 * Caroling Echo
 * Krampus Moogle?
 * Feasting Chocobo
 * Snowflan
 * Reindeer Echo
 * Snow Globe PuPu


 * Valentine's Day Campaign 2019


 * White Day Campaign 2019